1N4691UR-1/TR

Overview

The Microchip Technology 1N4691UR-1/TR is a surface mount Zener diode in the DO-213AA package. It provides a nominal voltage of 6.2 V with a standard tolerance of ±5%. The device operates at a test current of 50 µA and dissipates up to 0.5 W. It features an internal metallurgical bond for high reliability and hermetic sealing. The TR suffix indicates tape and reel packaging.

Feature Summary

• Hermetically sealed glass DO-213AA MELF style package
• Internal metallurgically bonded die construction
• Surface mount equivalent of JEDEC registered series

Applications

• Voltage regulation over broad operating ranges
• High-reliability electronic circuits
• Radiation-hardened applications

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm RoHS compliance status, as commercial versions may differ from military screening options. Confirm that the tape and reel quantity matches project requirements before finalizing procurement orders.

Selection Notes

Select this component when a hermetically sealed surface mount Zener diode is required. Ensure the 6.2 V nominal voltage aligns with circuit design needs. Verify thermal derating curves are considered for the specific mounting footprint and ambient temperature conditions.

Part Context

This part belongs to the 1N4678UR-1 through 1N4717UR-1 series of 0.5 watt glass surface mount Zener voltage regulators. The series offers voltages from 1.8 to 43 volts with tight tolerances available.

Replacement Considerations

Direct replacements include other manufacturers' equivalents in the DO-213AA package with matching 6.2 V specifications. Verify pinout polarity and thermal resistance characteristics match the original design constraints.